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IC Engines - Interview Questions and Answers

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66. The minimum cranking speed in case of petrol engine is about
A. half the operating speed
B. one-fourth of operating speed
C. 250-300 rpm
D. 60-80 rpm
E. 10-20 rpm
Explanation:
67. In a diesel engine, the fuel is ignited by
A. spark
B. injected fuel
C. heat resulting from compressing air that is supplied for combustion
D. ignitor
E. combustion chamber.
Explanation:
68. The magneto in an automobile is basically
A. transformer
B. d.c. generator
C. capacitor
D. magnetic circuit
E. a.c. generator.
Explanation:
69. The specific fuel consumption of a petrol engine compared to diesel engine of same H.P. is
A. same
B. more
C. less
D. less or more depending on operating conditions
E. unpredictable.
Explanation:
70. Most high speed compression engines operate on
A. Otto cycle
B. Diesel cycle
C. Dual cycle
D. Carnot cycle
E. Two stroke cycle.
Explanation:
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